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A. G. GHRISTMAN.

V PLOW.

No. 254,533. Patented Mar. 7,1882.

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UNITED STATES PATENT OFFICE.

AUGUSTUS Gr. GHRISTMAN, OF READING, PENNSYLVANIA.

PLOW.

SPECIFICATION forming part of Letters Patent No. 254,533, dated March 7,1882.

Application filed June 1d, 1881. (ModeL) to that class of plows so arranged as to be shod indift'eren tly with either a cast or wrought iron or steel share or point, and is an improvement upon the plow for which Letters Patent were granted me, numbered 223,660, January 20, 1880.

Referring to the drawings herewith, which form part of this specification, Figure 1, Sheet 1, is an elevation of the plow on the mold-board side; Fig. 2, Sheet 1, a plan, looking down on the top of the beam, with the jointer removed 5 Fig. 3, Sheet 2, an elevation on the landside of the plow; Fig. 4, Sheet 2, a reverse plan of the plow Fig. 5, Sheet 2, plan and side elevation of the special shoe and jointer-bar; Fig. 6, Sheet 2, plan and side elevation of the adjustable braces; Fig. 7, Sheet 2, plan and elevation of the caster-wheel slide and dust-guard; Fig. 8, Sheet 2, plan and elevation of the easter-wheel pedestal; Fig. 9, Sheet 2, sectional elevation and reverse plan of the standards B B showing the serrated bolt-head and recess for same in standard B Similar letters indicate similar parts, and in describing the same A indicates the plowbeam; A, the fulcrum-bolt; A the adj ustingbolt; A the clevis 5 aand a,clevis-bolts; B,the mold-board, having a front standard and seat, B, and a rear standard and seat, B cast with and forming a part of the mold-board B fulcrum-ear for handle J on the landside, and B fulcrum seat or pad for handle J on the moldboard side of the plow. b b are palms on the side ofthe rear standard, B at the top, and the arc struck with a radius fromthe fulcrum-bolt A, and provided with an undercut flange, W, at the rear to engage with the hook-head of the adjusting-boltA Gis the plow share orpoint D, a special shoe permitting changes of the share from wrought to cast iron, or vice versa D, flange of shoe forming part of landside when using a cast-iron point; E, landside-shoe; e 6, cars for bolting to the landside. F is the landside proper, secured by bolts to the off-side rearextensionof mold-board. Gris ajointer-bar, secured by bolts 99 to the front and rear standards, B B on the land side of the beam,

ledge on its back fitted to the sunken face of the head G, adjustable for height on and secured to the head-G of the jointer-barG by a bolt, 9 sliding in the slot 9 I is the jointershare, secured to the seat H by bolts t t; J J, the handles of the plow, J being fulcrumed on the mold-board at the seat B and J on the ear B of the front-standard rear extension of the mold-board; K, a bifurcated brace at the rear of the plow, the head K of which is secured to the standard B underneath the palms b b. The outer or rear ends of the brace-arms have sector-palms K with a corresponding bolt-slot therein, and are fastened to the handles J J by bolts 1 l. L, a brace extending from'the upper edge of the mold-board B to the handle J, and retained in contact with the same by the bolt 1. The handle end ofthe brace L has a sector-palm, L, similar to those ofthe brace K, which are thus constructed for the purpose of allowing the adjustment of the height of the handles at the rear. M is a caster-wheel of the usual construction. N isa shield or dirtguard sliding over the outside end of the wheelshaft or pin 0, and projecting partially over the hub of the wheel M. N is asimil'ar shield, cast with or secured to the sliding-head P and protects the pin 0 on the inside of the wheel.

0 is the wheelshaft, pin, or journal, cast with or attached to the sliding head. P is the sliding head for the wheel M, is provided with a shaft, O,therefor, and has a raised ledge on its back, which contacts with a groove in the wheel-pedestal, and guides it for vertical adjustment, being secured to the same by a bolt, P; Q, a pedestal fulcrumed to the under side of the beam by a bolt, a, passing through the rear end of the clevis A and the foot Q of the pedestal, the rear foot, Q, bein g provided with a sector-slot, R, and bolt R, whereby the pedestal and wheel M are made adjustable horizontally with relation to the plow-point. The pedestal has a sunken face, Q for the reception of the ledge on the back of the sliding head P, and an oblong slot, q, for the bolt P, by which the head P is secured at the desired height. S is a bolt which secures the special shoe D to the plow of the standard B ,where a nut retains the same and binds the parts vertically together. To remove the shearing-strain from the bolts g g, which secure the jointer-bar G to the standards B and B a recess is made in the front standard at b, and a corresponding lug, h is cast upon the jointer-bar, and when placed in position relieves the strain upon the boltsg g.

A comparison of my present improvement with that of my patent of January 20, 1880, will show that I have simplified the construction,lessened the number of parts, (of the plow proper,) and have given a more permanent character to all the details connected there- With. The beam is readily adjusted within proper limits to any desired angle with'the center draft of the plow by swiveling on the fulcrum-bolt A, the bolt A being loosened to permit swiveling, and tightened to retain the beam at the desired angle. I The handles J J are adjusted vertically by loosening the bolts H and retightening when the proper elevation is reached. The caster-wheel M is also adjustable vertically by loosening and tigh tening of the bolt 1?.

To give additional horizontal angular movement to the beam A, the front standard, B,has an oblong slot provided for the fulcrum-bolt A, the slot being inclosed on its rear and two sides at such distance from the edge as will permitthe head of the bolt A to be drawn within the inclosure. The rear face of the recess thus provided is serrated, and the head of the bolt A is correspondingly toothed, and interlocks with those of the recess. This permits the fulcrum-point to be changed by dropping the bolt-head out of gear with the recess, then shifting the position of the beam A upon the I plied to sea-ts provided for the same upon the heads of j ointer-bars, and that they were adapted to be adjustable vertically thereon, and that sliding heads have been employed for carrying the caster-wheels of plows, and for analogous purposes; therefore I do not broadly claim the same; but I believe that I am the first tomake such a jointer combination with a plain bar rigidly secured to the standards of a doublestandard mold-board plow, or to apply a slidingcaster-wheel head to an angularly-horizontally adjustable pedestal.

Having described my invention, I desire to secure by Letters Patent the following claims:

1. In a plow, the combination, with the beam A, of the double standards B B cast with and forming an integral part of the mold-board B, said mold-board being provided with a seat for the point C, landside F, and special shoe D, and with a reverse face having an ear, B and a pad, B, forming fulcrum-points for the bandles J J, substantially as shown, and for the purpose set forth.

2. The combination, with the double-standard mold-board B B B of the straight jointer-bar G, secured by bolts g g to the standards B B said bar being further provided with 2. lug, b adapted to engage a recess, b, in the standard B, substantially as shown, and for the purpose specified.

3. The straight jointer-bar G, provided with jointer-head G, in combination with the double-standard mold-board B B B said jointerbar being attached to the standards B B by bolts 9 lug b and recess b substantially as shown, and for the purpose described.

4. The caster-wheel pedestal Q, having a vertical guide-recess, Q oblong bolt-slot q, fulcrum-foot Q, and adjustable foot Q provided with circumferential slot It, in combination with the beam A, bolt It, clevis A belt a, caster-wheel M, and sliding head P, having bolt P, and shaft 0, substantially as shown, and for the purpose herein set forth.

AUGUSTUS G. CHRISTMAN.

Witnesses:

GEORGE V. GARNER, EDWARD YEAGER. 

